ASSEMBLY
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Assembling the Bar and Chain
WARNING: Check the chain tension frequently when operating the chain saw. Never touch or adjust the chain while the engine is running. The saw chain is very sharp, always wear protective gloves when performing maintenance to the chain.
1Ensure that the chain brake is not set by pulling the chain brake lever / hand guard towards the front handle as shown in Fig. 20. Refer to
2.Remove the two (2) bar nuts (A, Fig. 21) and the clutch cover
(B).
3.Remove and discard the plastic shipping spacer (C, Fig. 22) that has been installed on the bar studs in place of the bar for shipping purposes.
4.Adjust the chain tensioning pin (D) fully towards the rim sprocket (E) using the chain tensioning screw (F, Fig. 22).
5.The guide bar (G) contains a bar stud slot that fits over the bar studs (H). The guide bar also contains two chain tensioning pin holes (I) which fit over the chain tensioning pin and two lubri- cation holes. The bar is reversible and either tensioning pin hole may be utilized with the chain tensioning pin.
6.Place the guide bar (G) onto the bar studs (H) so that the chain tensioning pin (F) fits into the chain tensioning pin hole.
7.Position the guide bar (G) tip through the chain (L) loop as shown in Fig. 23. The cutters on the top of the guide bar should face toward the bar nose, in the direction of the chain rotation. See insert (M) in illustration below.
8.Fit the chain (G) over the rim sprocket (E) and into bar groove.
CAUTION: Severe damage can occur to the rim sprocket, clutch drum, guide bar and chain, if the chain is not correctly seated into the rim sprocket.
9.Replace the clutch cover (B) and install the two (2) bar nuts
(A). Tighten the bar nuts finger tight only. The bar must be free to move for tension adjustment.
CAUTION: Failure to ensure that the chain tensioning pin is in the chain tensioning pin hole will result in severe damage to the chain saw during reassembly of the clutch cover.
NOTE: If the clutch cover does not slide on freely, check that the chain brake is not engaged. To disengage chain brake with clutch cover removed, grasp clutch cover as shown in Fig. 20 and pull back on chain brake lever / hand guard.
10.Remove all slack from chain by turning the chain tensioning screw (F) clockwise, assuring that the chain seats into the bar groove during tensioning (Fig. 25, page 16).
11.Lift the tip of the guide bar up to check for sag, see Fig. 26, pag. 16. Release the tip of the guide bar, and turn the chain tensioning screw (F) 1/2 turn clockwise. Repeat this process until sag does not exist.
12.Hold the tip of the guide bar up and tighten the bar nuts securely as shown in Fig. 27, page 16.
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